A cat's pregnancy lasts around 63 days. If you're unsure of when exactly your cat conceived, it can be challenging to predict when labor will begin. However, by closely observing changes in your cat's behavior and physical condition, you can ensure they receive proper care and determine whether the labor process is progressing normally.
Steps
Observe the Cat's Behavior

The cat looks for a birthing spot. As the due date approaches, a pregnant cat will start searching for a safe place to give birth and care for her kittens. Most mother cats prefer quiet, undisturbed areas like closets or other secluded spaces. If you notice your cat lingering in these types of spots, you can lay down a blanket or towel to make her nesting area more comfortable.
- You can also create a nest for the cat, such as preparing a cardboard box. However, many mother cats prefer to choose their own birthing location and may even move the nest after some time.

Observe changes in behavior.
As the cat's delivery time approaches, it may become restless and move around more frequently. You might also notice changes in its usual behavior. For instance, if the cat is usually distant, it may become more clingy or, conversely, if it is affectionate, it may want more space.

Notice if the cat skips meals. Pregnant cats generally eat more than usual, but as labor nears, you might observe her eating less or even refusing food altogether.

Watch for grooming behaviors around the genital area. As the cat prepares for labor, there may be physiological changes she experiences. You might see her licking her genital area to clean herself. Occasionally, there may also be discharge, which signals that labor is about to begin.
Examine the cat's body.

Take her temperature. Start checking the cat's temperature around day 60 after mating for a reliable estimate of when she will give birth. Even if you don't know the exact date of mating, regularly checking her temperature once she's in late pregnancy can help predict labor.
- Her rectal temperature during pregnancy fluctuates between 38.1°C and 38.9°C.
- About 2 hours before delivery, her rectal temperature will drop by as much as 2 degrees.

Monitor the physical condition of your cat. As labor approaches, the cat’s nipples and mammary glands will become more pronounced. The cat may start licking her nipples as well. Other physical signs include a sagging belly and a soft, dilated vulva. These signs will be quite noticeable as labor nears.

Pay close attention to your cat’s breathing pattern. If you suspect that labor is near and you can approach the cat, listen carefully to her breath. As the cat prepares to give birth, her breathing may become faster and more labored. She may also start groaning rhythmically.

Feel for tension and pressure in the abdomen. As the cat nears delivery, you may begin to feel contractions. Gently place your hand on her belly to detect this. The tension and pressure in the abdomen are signs that contractions are occurring. Sometimes, you may even see the belly tighten rhythmically. At this point, the cat typically lies on her side, which makes it easier for you to observe.
Be aware of any dangerous signs.

Contact a vet if labor is taking too long. Most cats can deliver their kittens without help. However, closely monitor your cat as she enters labor. If she shows signs such as contractions but hasn’t delivered after an hour, it’s important to contact a veterinarian immediately. The vet will know what steps to take to assist her.

Carefully observe your cat if her body temperature rises. Checking her temperature can not only indicate that she is about to give birth, but it can also help identify potential risks. Usually, a cat’s body temperature drops when she is in labor. If your cat's temperature rises, take note and check it again as soon as possible. If her temperature remains higher than normal, contact a veterinarian.

Watch for any abnormal discharge. During labor, a cat may release a small amount of blood. A pregnant cat may also discharge mucus or amniotic fluid as she prepares to give birth. However, if the bleeding is excessive or the discharge has an unpleasant odor, it’s important to call a vet immediately, as this could indicate a health issue.

Be alert for signs of pain. Giving birth often comes with discomfort and behavioral changes, making it hard to tell if your cat is in distress. Most cats can give birth without complications, but if you notice your cat biting her vulva, crying out, or excessively licking the area, it’s a good idea to contact a vet to prevent any potential risks.

Watch for any dangerous behaviors. Cats often exhibit unusual behavior as they approach labor, but excessive lethargy or dullness isn’t always a sign of imminent birth; it could be related to other issues. If your cat displays such behavior, describe it to your vet for guidance on how to proceed.